Subdivision Permit

Map Number Request

A map number is required prior to the submission of an application for a tentative tract map, parcel map, lot line adjustment, certificate of compliance (conditional or unconditional), voluntary merger, or public lot.



This service is to request addresses for a Parcel Map, Tract Map, or Urban Lot Split within the unincorporated areas of San Luis Obispo County.


NOTE: All other addressable structures will be addressed after a construction permit is applied for.

Subdivision Amendment

Amendment to Previously Approved Subdivision. The Department of Planning & Building processes subdivision entitlements, including amendments, according to the provisions of the state Subdivision Map Act and the County Real Property Division Ordinance.


Subdivision Time Extension

Initial approval of Land Use Permits and Subdivisions is valid for 24 months (two years). Time Extensions of ONE (1) year may be requested based on the type of project (for example: Minor Use or Conditional Use Permits, and Parcel or Tract Maps). 

Click here for a comprehensive table outlining the eligibility and applicable hearing body or approval processes for various types of Land Use Permits and Subdivisions.

Pre-Application Meeting

Pre-application meetings are coordinated by the Department of Planning and Building to assist members of the public with understanding regulations that are applicable to a specific development project, permitting and development processes for a specific development project or for the resolution of a Notice of Violation from the Code Enforcement Division.